body {
    background: #f5f1f0;
}

ol>li>ol,
ol>li>ul,
ul>li>ol,
ul>li>ul {
    margin: 0;
}

input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
    color: #aaa;
}

input:-moz-placeholder,
textarea:-moz-placeholder {
    color: #aaa;
}

input::-moz-placeholder,
textarea::-moz-placeholder {
    color: #aaa;
}

input:-ms-input-placeholder,
textarea:-ms-input-placeholder {
    color: #aaa;
}

.color_active {
    color: #e72e0d;
}

.color_aaa {
    color: #aaa;
}

header {
    width: 100%;
    position: relative;
    text-align: center;
    height: 4.4rem;
    color: white
}

header img {
    width: 1rem;
    height: 1.6rem;
    position: absolute;
    left: 1.5rem;
    top: 1.4rem;
}

header span {
    line-height: 4.4rem;
}

header>span {
    font-weight: bold;
}

header a {
    position: absolute;
    right: 1.5rem;
    top: 1.4rem;
    width: 2rem;
    height: 1.6rem;
    color: #e72e0d;
}

header a i {
    display: block;
    width: 2.5rem;
    height: 1.6rem;
    background: url(../../img/yzSchool.png) no-repeat -135px -59px;
    background-size: 375px 106.5px;
}

.gradient-bg {
    background-image: -moz-linear-gradient( 0deg, rgb(240, 0, 0) 0%, rgb(255, 120, 40) 100%);
    background-image: -webkit-linear-gradient( 0deg, rgb(240, 0, 0) 0%, rgb(255, 120, 40) 100%);
    background-image: -ms-linear-gradient( 0deg, rgb(240, 0, 0) 0%, rgb(255, 120, 40) 100%);
}

/* 蚁族学堂 */

.header_input {
    padding: 0 2rem;
    display: flex;
    align-items: center;
    position: relative;
}

.header_input>i {
    position: absolute;
    left: 30px;
    top: 13px;
    z-index: 10;
    display: block;
    width: 2rem;
    height: 2rem;
    background: url(../../img/yzSchool.png) no-repeat -218px -70px;
    background-size: 400px 120px;
}

.header_input input {
    width: 100%;
    border-radius: 20px;
    height: 3.5rem;
    padding-left: 3.5rem;
    font-size: 1.4rem;
}

.yzSchool_nav {
    display: flex;
    justify-content: space-around;
    text-align: center;
    padding: 1rem 0;
    background: white;
}

.yzSchool_nav i {
    display: block;
    margin: 0 auto;
    width: 4rem;
    height: 4rem;
    background: url(../../img/yzSchool.png) no-repeat;
    background-size: 375px 106.5px;
}

.yzSchool_nav li:nth-of-type(1) i {
    background-position: -18px -10px;
}

.yzSchool_nav li:nth-of-type(2) i {
    background-position: -92px -10px;
}

.yzSchool_nav li:nth-of-type(3) i {
    background-position: -167px -10px;
}

.yzSchool_nav li:nth-of-type(4) i {
    background-position: -238px -10px;
}

.yzSchool_nav li:nth-of-type(5) i {
    background-position: -308px -10px;
}

.yzSchool_lists>li {
    width: 100%;
    height: 19rem;
    background: url(../../img/img_left.jpg) no-repeat;
    background-size: 100% 100%;
    margin-top: 1rem;
    padding: .5rem 1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.yzSchool_lists>li>p:last-of-type {
    text-align: center;
    text-shadow: 1px 1px 1px white;
}

.yzSchool_lists ul {
    display: flex;
}

.yzSchool_lists ul>li {
    position: relative;
}

.yzSchool_lists ul>li>a {
    padding-left: 2rem;
    color: white;
}

.yzSchool_lists ul>li {
    display: flex;
    align-items: center;
    margin-right: 1rem;
    padding: .2rem .5rem;
    border-radius: 5px;
    background: rgba(0, 0, 0, .4);
}

.yzSchool_lists ul>li i,
.yzSchool_lists ul>li span {
    position: absolute;
    display: block;
    width: 2rem;
    height: 1.5rem;
    background: url(../../img/yzSchool.png) no-repeat;
    background-size: 375px 106.5px;
}

.yzSchool_lists ul>li i {
    background-position: -18px -63px;
}

.yzSchool_lists ul>li span {
    background-position: -18px -63px;
}